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xxTIMURxx [149]
3 years ago
11

I need help plzzz this is algebra

Mathematics
1 answer:
SpyIntel [72]3 years ago
3 0
Set like terms on each side by adding six to the first side and subtracting 1/2x from the first side. this gives you 9<1.5x. divide both sides by 1.5 to get 66. the answer is 4) x>6
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Jaya has a 10 cm square piece of origami paper. If she folds the square into 4 equal triangles, what will be the area of each tr
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<span>This is the term used to describe economic systems in which the basic economic questions are answered based on a socially, pre-established way.</span>
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3 years ago
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A person is looking from a car to the top of a building. The angle of elevation to the top of the building from the car
MrRa [10]

Answer:124.29ft (approximately 125ft)

Step-by-step explanation:

4 0
3 years ago
The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
3 years ago
Pls help this is important
Svet_ta [14]

Answer:

<h2>C is the answer </h2>

Step-by-step explanation:

<h2>5/4 is the answer</h2>

8 0
3 years ago
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5x - 54 + 3x + 16 = 180<br><br> 3x +16 = 180<br><br> 5x - 54 = 3x + 16
Sloan [31]

Answer:

the answer sdhould be the third one

3 0
3 years ago
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